Fastener



Patented May 28 i9.

.entre sa BENJAMIN E". lHUBBEKJM @F GAMBRIME, MASSACHUSETTS, ASSIGNOR TO CARR 'iraniana centenar, or eaaraarnenmassacnusnrre, a eoaroi-f,

M neme 'HON FMTENER.

Applleatilon' tiled August R8, 1881. Eletta! 11704-491812.

To alli'whom it may concern.'

Be it known that I BENJAMIN BELL, a citizen of the United States, and resident of Cambrid, in the county o f Middlesex, State of assachusetts, have invented an improvement in Fasteners, of which the following description, in connection with the accompanying drawin s, 1s a specication, like characters on the rawings representing like parts.

rlhis invention pertains to improvements in separable fasteners. lt is among the objects of the invention to provide a separable fastener in which the parts may be positively locked against undesired separation under strain in any and all directions.

"ln the drawings, which show a preferred form of one embodiment of my invention 'Figui'e 1 is a front elevation of a preferred form of fastener;

Fig. 2 is a section on the line 2-2 of i 3 is a section, partly in elevation,- on theline 3'3 of Fi 2, the socket portions being omitted and t e parts of the stud bein@` in locked relation;

igy t .is a section, partly in elevation, on the same line as Fig. 3, but showing the parts of the fastener in unlocked position; and

l? i. 5 is a section of part of' the socket "w. on the line 5-5 of Fig. 3. Referring to the drawingsv and to the preferred form of my invention selected for illustrative purposes, I have shown a socket 5 secured to a rigid carrying medium 6, which may be the body of an automobile or the like. The socket 5 presents a studreceiving openin of a size at the entrance end which will a mit the body portion 7 of a stud-carrying spring 8 contractibleIto a roximately the diameter of the stud bo y but preferably normally resiliently tending to maintain an outside diameter somewhat greater than that of the body portion 7 of the stud. The interior of the preferred form of socket illustrated presents a recessed or enlarged portion 9 somewhat greater in diameter than the outer portion of the socket aperture. lln the preferred form of stud illustrated, the body portion 7 is formed with a rounded end 10 and is slotted at 11, 12, 13 and 14 to permit passage therethrough of projecting portions of the spring 8. The spring 8 is preferably so formed that it may be contracted entirely to fit within the body 7 of thel stud during assembly of the springv 8 with the stud body 7. The preferred form of stud illustrated is carried by stud-carrying fabric 15 andvincludes, iii addition to the body 7 of the spring 8, spring-locking means typified by the rotatable cam part 16 secured to a stein 17 having at its opposite ends on the other side of the fabric 15 a projecting turn-button 18. The locking parts 16, 17 and 18 may be held in assembled relationship lto the stud body by a retainer ring 19 havin an outer terminal flange 20-and a front p ate 22 having prongs 23 (as shown in Fig. 5) clenched to hold in assembled relationshi) and the ange 21 o the body ortion 7. This front platey 22 also jecting prongs 24 a a ted to pass through the stud-carrying I fa ric 15 and to be clenched over the securing late 25.

The locking cam 16 pre erably rovides, as illustrated, the projections a apted to abut against the bows of the spring 8 lying within the stud body7 and to hold the spring agalnst compression when the turn-button 18 is turned into locking position, the parts then occupying the relative position shown in Fig. 3. When, on the other hand, the turn-button 18 is turned into unlocked position, the cam 16 occupies the position relative to the spring, as illustrated in Fig. 4, so that .the spring may com ress pursuant to outward strain on the stu away from the socket.

The assembly of the various parts of the fastener may be as follows. Assuming the shank 17 to be assembled with the disc 31, and the cam 16 to be riveted thereto, the ring 19 and front plate 22 are then pressed over the shank 17 and the turn-button 18 is riveted to the end of the shank 17 to hold these parts in assembled relationship. The spring 8 is then slipped on to the cam 16 in the relative position thereto shown in Fi 4, and the stud body 7 is slipped over t ese assembled parts, thereby compressing the spring 8 so that it can ass through the stud body until it reaches t e openings 14 thereof, after which the spring 8 will spring into lthese openings. The lugs or prongs 23 are then bent down to hold the stud body 7 in assembled relationship to the parts previously assembled. When the stud portions previously described are to be secured to their carrying curtain 15, an appropriate the flan e 20 of the retainer 19- referab y carries prov 25. The socket may be secured to its carrying elements in any suitable way, but Where the carrying elei'nent is a solid as distinguished from a flexible carrying medium, I

prefer to use the exterior screw threads 33 as indicated.

vus

vThe operation of the fastener is simple',

the turn-buttonbein turned to unlocking position so that the ocking cam'is free". of the spring, as shown in Fig. 4. The stud is pressed into the socket and when: suiciently entered vtherein the locking cam; is turned to lockin position so that the locking cam will ho d the spring against conipression, the cam and-spring then beipvg' the relative positionshown in Fig. 3..

* itis again desiredto separate the parts, the locking' cam is again turned to unlocked powthdrawn from the socket.

. out'departing from thesco sition, whereupon the stud may be yeasily While I have shown and 'described a preininvolving omission, substitution, alteration and -reversal of parts, and even changes thenmode of operation, may be made with- Y pe of my invention, which is best defined in the following claims:

1. A fastener comprising a socket, in com'- then clenchedv lien name to this medusa biiiation with a stud presenting a porcar in medium a enerall ilat s rin ca rrriedgby said bhdy g rtion,ythe plage 0% said spring perpendicu ar to the axis of said body portion, and locking means f or holding said sp'ring locked in engaged relation to saidsoc et, said locking means cooperating with an operating part extend' into said body portion and projecting onl'lte opposite side of said carrying lmedium from said bod portion. h l

. 2. A' astener including a stud having a hpllow body portion, lateral openings in said body portion, resilient means projectingv through said (pe ing socket an aylocking art mounted for turning movement in sai vbody portion to hold said resilient means in extended ti'on and to silient means.

nings to engage a miopei'at` osipermit contraction of sai re-A tion projecting on one side of a exible :3. A stud for separable fasteners coinl risin a body part projecting from one sie of a exible carrying medium, a spring laterally rejecting through said body part, a

turna le-locking cam" or locking said spring in expanded position, a` shank connected to said cam and provided with a handleportion on the opposite side of the carrying medium, and means holdin said body,

s rin alssemled relationship prior to application thereof to the' flexible stud-carrying medium. In testimonywhereof, I havesigned my seciication.

BE JAMIN F. HUBBELL.

cam, shank and han le portion in 

